What is said about a material that does not mix with water even after long stirring?
AIt is soluble in water
BIt is insoluble in water
CIt is transparent in water
DIt is lustrous in water
Answer & Solution
Correct answer: B. It is insoluble in water
1. Some materials do not disappear on stirring.
2. Such materials are insoluble in water, like sand or sawdust.
3. Soluble materials would have disappeared, and the other terms do not describe mixing.
_Source: NCERT Curiosity Class 6 Science, Ch 6, 6.3.4_
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